The objective of this research was to evaluate the quality parameters and the chromatographic, thermogravimetric, and spectroscopic profile of Patauá oil (Oenocarpus bataua). All analyses were performed according to the Recommended Practices of the American Dil Chemists' Society (ADCS). The parameters obtained indicate conservation quality standards in accordance with Brazilian legislation. The fatty acid profile shows a predominance of ω-9, ω-6, and ω-3 fatty acids. The thermogravimetric behavior and differential analysis indicated good stability upon gradual temperature increase and the presence of endothermic and exothermic peaks characteristic of thermal and oxidative decomposition at high temperatures only. The spectroscopic profile evidenced long-chain unsaturated fatty acids confirming the fatty acid profile results. Ot was found that, in general, the Patauá oil has good nutritional and functional quality and high thermal and oxidative stability; therefore it can be considered as a raw material with potential applications in various industries.

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This study aimed to investigate the effects of two, conventional and green, extraction techniques on the nutritional, bioactive and physicochemical properties of oils from Astrocaryum vulgare pulp. It is an Amazonian oilseed named tucumã, known by their oily nature and bioactive properties. n-Hexane (N-HE) and supercritical CO 2 (SFE-CO 2 ) were used as extraction solvents. Higher oil yield, 39.63%, was achieved using N-HE then SFE-CO 2 , 36.75%. The SFE-CO 2 oil presented low acidity and peroxide content, 0.9 mg KOHg −1 and 1.1 mEq kg −1 , while the N-HE presented 3.25 mg KOH g −1 and 2.4 mEq kg −1 , respectively (P < 0.05). The SFE-CO 2 oil exhibited greater content of linoleic (~42.3%) and oleic acids (~32.6%) (P < 0.05) and higher β-carotenes, up to 1100 μg 100 g −1 , while the N-HE oil had ~877 μg 100 g −1 . SFE-CO 2 had positive effect on the physicochemical and nutritional properties of A. vulgare pulp oil, which was statistically confirmed by principal component analysis (PCA). Practical applications The application of green techniques based on supercritical CO 2 fluid extraction to obtain biolipids from A. vulgare pulp with greater nutritional quality contributes to its potential utilisation as a functional ingredient in foods.